Ribbon diagrams show secondary structures and appear less detailed than other model types. In one to two sentences, give a reason that chemists would use ribbon diagrams. What type of information do they provide? (SHORT ANSWER)

A cold air mass colliding with a hot air mass triggers the development of a tornado and is denoted as option D.

This is referred to as a violently rotating column of air and it is caused as a result of different types of factors such as the humidity , temperature etc.

A tornado is usually very violent and it is formed when cold air mass collides with a hot air mass and is often characterized by a green color in most situations and is therefore the reason why option D was chosen as the most appropriate choice.

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Explanation:

Force=mass *acceleration

F=300*5

f

F=1500N

Answer:

No. of protons = 34

Explanation:

First we need to calculate the number of electrons in one mole of the the element:

No. of electrons per mole = Total Mass of Electrons/Mass of 1 Electron

No. of electrons per mole = (18.65 x 10⁻³ g)/(9.109 x 10⁻²⁸ g)

No. of electrons per mole = 2.04 x 10²⁵ electrons/mol

Now, we calculate the no. of electrons in 1 atom:

No. of electrons per atom = No. of Electrons per mole/No. of atoms per mole

No. of electrons per atom = (2.04 x 10²⁵ electrons/mol)/(6.022 x 10²³ atoms/mol)

No. of electrons per atom = 34 electrons/atom

Since, the no. of protons in a pure element are equal to the number of electrons. Therefore,

No. of protons = 34

In this exercise we have to use the knowledge of atoms to calculate the number of protons, in this way we find:

Protons will be  34

First we need to reckon the number of electrons fashionable individual blemish of the the place where one feels comfortable:

\(electrons \ per \ mole = Total\ Mass\ of \ Electrons/Mass\ of\ 1 \ Electron\\ electrons\ per\ mole = (18.65 * 10^{-3} g)/(9.109 * 10^{28} g)\\ electrons \ per \ mole = 2.04 x 10^{25} electrons/mol\)

Now, we plan on the electrons in 1 smallest part of something:

\(electrons\ per\ atom = Electrons\ per\ mole/atoms\ per\ mole\\ electrons\ per\ atom = (2.04 * 10^{25} electrons/mol)/(6.022 * 10^{23} atoms/mol)\\ electrons\ per\ atom = 34 electrons/atom \)

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Answer:

changes like leaves turning color in the fall are chemical changes. They involve chemical reactions. Bonds break in chemicals and new bonds form. Substances change into new chemical compounds.

Explanation:

Answer:

p = 1.714 g/cm3

Explanation:

Density Equation

p=mV

Where:

p = density

m = mass  = 60g

V = volume = 35cm3

p = 60g x 35cm3

p = 1.714 g/cm3

p=1.714g/cm³

Explanation:

v=35cm³

m=60g

P=mass/volume (density formula)

=60/35

=1.714g/cm³

Answer:

sorry i dont know

Explanation:

Answer:

Joints

Explanation:

Without joints we would not be able to bend our arms or legs. Hence option C is correct.

Bending is defined as the behavior of a thin structural element under an external load that is applied perpendicular to the element's longitudinal axis. Plants and their parts are thought to bend as a result of a flexure process in which the curvature of the plant part changes. The plant organs' collenchyma gives them flexibility and elasticity, preventing them from breaking when bent.

The force required to bend, straighten, and support joints is applied by muscles to the bones. Muscles act in pairs of flexors and extensors because they may pull on bones but not put them back into place. The extensor muscle relaxes and stretches as the flexor muscle contracts to bend the joint.

Thus, without joints we would not be able to bend our arms or legs. Hence option C is correct.

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Answer:

100,000,000,000

Explanation:

Given that :

1 hubble space telescope pointed at 1 section of the sky reveals 10,000 distinct galaxies ;

Number of sections from which observation is to be made = 10,000,000

Number of distinct galaxy per section = 10,000

Number of galaxies that would exist in the known universe :

Total number of galaxies in the known universe :

Number of galaxies per section * number of sections

10,000 * 10,000,000

= 100,000,000,000s

Answer:bob

Explanation: owa owa

Answer:

They are slowly moving further apart from each other.

Explanation:

In the first picture, from 135 Million Years Ago, the continents are extremely close together. Looking at the present picture, our continents are much more spread out. These pictures prove that over all these million years, our continents are slowly drifting apart.

Answer:

C. the uneven heating of Earth's surface

Answer:

Hope this helps you!

Explanation:

Include big outside heaters and inside heaters to maintain warm

Also wear special clothes to keep body warmth

Answer:

The solubility is  \(S = 0.00912 \ g/mL\)

Explanation:

From the question we are told that

     The original volume of sample is  \(V_o = 34.0 mL = 34 *10^{-3} \ L\)

      The temperature is  \(T = 22.0 ^oC\)

      The new volume of sample  is  \(V_n = 750.0 mL = 750 *10^{-3} \ L\)

       The weight of the crystal is  \(X = 0.31 \ g = 0.31 *10^{-3} \ kg\)

Now looking at the question we see that 34.0 mL of the sample is saturated with  0.31g of the crystal X

Generally the solubility of X in the water sample at  \(22.0 ^oC\) can be mathematically evaluate as

                \(S = \frac{0.31 }{34.0}\)

                \(S = 0.00912 \ g/mL\)

Ethanol has the chemical formula C2H5OH. There will be twice as many carbon atoms as molecules, or two at a time 7.65 times Ten to something like a total of around 23.

When diluted, alcoholic beverages contain ethanol. It is used as a topical therapy to combat staph infections as well as in cosmetics, fragrances, and medicinal compounds. Bioethanol, ethanol, and denatured alcohol are examples of monohydric solvents, each of which has just one hydroxyl group.

Corn is the most widely used ingredient in ethanol produced domestically. It can also be produced utilizing cellulosic feedstocks such crop waste and wood, however this is less common. The majority of ethyl acetate plants in the US have been situated in the Midwest due to their proximity.

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Answer:

a form of energy resulting from the existence of charged particles (such as electrons or protons), either statically as an accumulation of charge or dynamically as a current.

Explanation:

The number of molecules in 59.73 grams of the theoretical acid, borofuric acid, would be 6.44 x \(10^2^3\) molecules.

According to Avogadro, 1 mole of any substance contains 6.022 x \(10^2^3\) molecules.

Recall that: number of moles in a substance = mass of the substance/molar mass of the substance.

Molar mass of borofuric acid, \(H_2B_2O_2\):

H = 1 g/mol

B = 10.8 g/mol

O = 16 g/mol

              (1x2) + (10.8x2) + (16x2) = 55.6 g/mol

Number of moles of 59.73 grams  \(H_2B_2O_2\) = 59.73/55.6

        = 1.07 moles

Since 1 mole = 6.022 x \(10^2^3\) molecules

1.07 moles of borofuric acid = 1.07 x 6.022 x \(10^2^3\) molecules.

                                            = 6.44 x \(10^2^3\) molecules

Thus, 59.73 grams of borofuric acid contains 6.44 x \(10^2^3\) molecules.

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Answer:

121 K

Explanation:

Step 1: Given data

Step 2: Convert "-1.4°C" to Kelvin

We will use the following expression.

K = °C + 273.15 = -1.4°C + 273.15 = 271.8 K

Step 3: Calculate the final temperature of the gas (T₂)

Assuming ideal behavior and constant pressure, we can calculate the final temperature of the gas using Charles' law.

V₁/T₁ = V₂/T₂

T₂ = V₂ × T₁/V₁

T₂ = 35.3 mL × 271.8 K/79.5 mL = 121 K

This technique has been used to identify the presence of gases such as oxygen, methane, and carbon dioxide in the atmospheres of exoplanets.  

i) To estimate the frequency of the violet (leftmost) emission, we can use the equation v = c/λ, where v is frequency, c is the speed of light (3.00 x 10^8 m/s), and λ is the wavelength of the emission in meters. The wavelength of the violet emission is 400 nm or 400 x 10^-9 m, so the frequency can be calculated as v = (3.00 x 10^8 m/s) / (400 x 10^-9 m) = 7.50 x 10^14 Hz.

ii) To estimate the energy of the violet emission, we can use the equation E = hv, where E is energy, h is Planck's constant (6.63 x 10^-34 Js), and v is frequency in Hz. Substituting the frequency calculated in part (i), we get E = (6.63 x 10^-34 Js) x (7.50 x 10^14 Hz) = 4.97 x 10^-19 J.

b. The spectral lines are produced by the electrons within the atoms of this element, which can absorb or emit specific amounts of energy to move between different energy levels. These energy transitions result in the emission or absorption of photons with specific wavelengths and frequencies, giving rise to the observed emission spectrum.

c. The violet emission line represents the photon with the most energy since it has the shortest wavelength (400 nm) and highest frequency (7.50 x 10^14 Hz) among the lines shown. This highest energy does not necessarily represent the energy of the valence electrons, but rather corresponds to the specific energy transitions occurring within the atoms of the element.

d. Emission spectra can be used to determine the gases present in the atmosphere of a far-away planet by analyzing the specific wavelengths of the emitted or absorbed light from the planet. Each gas has a unique emission or absorption spectrum, allowing scientists to identify the gases present in the planet's atmosphere.

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Answer:

there are 6 MOLES of zinc nitrate in 145 g

Answer:

Gas

Explanation:

Approximately 63.5% of the compound AgNO3 is made of silver.

The atomic mass of silver (Ag) is 107.87 g/mol, and the atomic mass of nitrogen (N) is 14.01 g/mol, and the atomic mass of oxygen (O) is 16.00 g/mol.

The molecular weight of AgNO3 is:

AgNO3 = (Ag atomic mass) + (N atomic mass) + (3 x O atomic mass)

AgNO3 = (107.87 g/mol) + (14.01 g/mol) + (3 x 16.00 g/mol)

AgNO3 = 169.87 g/mol

The percent by mass of silver in AgNO3 can be calculated as:

Percent by mass of silver = (Mass of silver / Total mass of AgNO3) x 100

Since there is only one silver atom in one AgNO3 molecule, the mass of silver in one mole of AgNO3 is equal to the atomic mass of silver, which is 107.87 g/mol.

Therefore, the percent by mass of silver in AgNO3 is:

Percent by mass of silver = (107.87 g/mol / 169.87 g/mol) x 100

Percent by mass of silver = 63.5%

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Answer:

11 N to the right

Explanation:

the net force would be 24 N - 13 N, which is 11 N. Since 24 is the larger number, it will go in the direction of the 24 force

Answer: E) does not exhibit covalent bonding since it's bonding between a metal and nonmetal.

Explanation:

the molar ratio of O2 to H2O is C. 5:4.

Looking at the coefficients, the stoichiometric proportion of water to methane (C3H8) is 4:1.In other words, 4 moles of water were produced for every mole of propane that is utilized.Hence, 0.1486 moles of C3H8 will be required for propane in order to produce 0.5944 moles of H2O.

Combustion is the correct response (letter C).An illustration of a complete combustion is the one that was given.Oxygen gas is a reactant in a combustion reaction that results in the products carbon dioxide and water.

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- The skeleton equation is:

The products are Cu(CO3) and Al(NO3)3.

- The balanced equation is:

So, on the reactants side and on the products side are:

- 2 moles of Al.

- 3 moles of C.

- 3 moles of Cu.

- 3 moles of N.

- 27 moles of O.

Answer:

Condensation

Explanation:

Zoe is quite keen to have noticed what we call condensation. Air contains many components, one of those being water vapor. Like how sugar is soluble in water, water can be said to be "soluble" in air. Water will evaporate into the air to a certain extent. The higher the temperature of the air, the more water the air can hold. If the air has more water that it can hold (potentially because of a temperature decrease), the extra water will come out of the air. Zoe's water bottle was cold, and because the air around Zoe's bottle had cooled down, the air can not hold as much water as it could when it was warm, so the air deposited the extra water in the form of liquid water onto the bottle, giving the illusion that her bottle was sweating.

Answer:

I believe it's

4-floro-5,6,8-Tribromo-3,3,7-trimethylnonane

Answer:

question not clear can u rewrite